52 
THE WEEKLY ENTOMOLOGIST. 
Emigration of Insects. — As I have 
been absent from England for the last 
six months, I have not had an oppor- 
tunity of seeing the “ Weekly Ento- 
mologist ” until a few days ago, and 
had no idea that my communication 
from Weymouth, in September last, 
had caused so much discussion. 
The probable immigration of insects 
into this country from the Continent 
appears to me to be a subject which 
requires a deal of investigation, and 
one which has received so little at- 
tention from Entomologists, that I 
do not see how, with our present 
limited knowledge on the matter any- 
one can altogether refute the theory. 
The insects I had in view when I 
remarked “ that 1 thought it not at 
all improbable &c. &c.’ were P. Lap- 
liclice, V. Antiopa, the rare Sphin- 
gina, and a few Noctvee ; the former 
species I have lately seen in abun- 
dance in Portugal, and was able to 
observe its habits closely, and as far 
as my experience goes, I should say 
it is anything but a weak flier. Some 
of the species I procured led me 
an exciting chase ; it is, moreover, an 
insect which might be readily over- 
looked, or mistaken for the lemale of 
A. Cardamines. 
With reference to the Vanessidee. 
everyone will allow they are strong- 
winged Butterflies, and quite capable 
of performing such a short journey as 
from Calais to Dover, a distance of 
about 23 miles, which a fresh speci- 
men of Antiopa might accomplish in 
perhaps three hours ;--I have, several 
times, while anchored at Spithead, 
observed V. atalanta fly past the ship 
towards the Isle of Wight, having 
evidently come from Southsea Com- 
mon ; and also in Gibraltar Bay I 
have seen the same species together 
with I\ rupee, C. Edusa, hyale, and 
21. stellatarum fly across from the 
Rock in the direction of Algeciras the 
Bay at this point being nearly six 
miles wide; whether these individ- 
uals arrived at their journey’s end in 
safety I am not in a position to say, 
but see no reason why they should 
not have done so. I need say nothing 
about the Sphingina, as their powers 
of flight are well known. 
In answer to the Editorial Query, 
which appears in the leading article 
of No. 9, I beg to state that all the 
Lepidoptera mentioned in my pre- 
vious communication, found their 
way to my Storebox, with the excep- 
tion of the Aspilates , which escaped. 
What became of the Dip ter a I cannot 
say, but have no doubt they got on 
very well ; the air was full of them, 
and they seemed to be perfectly at 
home and happy, and were not mov- 
ing in any particular direction. The 
day, as I have said before, was sul- 
try and hazy. — G. E. Mathew, 
Portsmouth. 
To he continued. 
Cleora Glabraria, — I am somewhat 
at a loss to understand the exact pur- 
port of Mr. Armstrong’s criticism on 
mj r communication respecting the 
above insect, — Mr. A. “ trusts the 
Rev. gentleman will be satisfied that, 
in the open air, it (the larva) is truly 
